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A040327 Continued fraction for sqrt(346). 1
18, 1, 1, 1, 1, 36, 1, 1, 1, 1, 36, 1, 1, 1, 1, 36, 1, 1, 1, 1, 36, 1, 1, 1, 1, 36, 1, 1, 1, 1, 36, 1, 1, 1, 1, 36, 1, 1, 1, 1, 36, 1, 1, 1, 1, 36, 1, 1, 1, 1, 36, 1, 1, 1, 1, 36, 1, 1, 1, 1, 36, 1, 1, 1, 1, 36, 1, 1, 1, 1, 36, 1, 1, 1, 1, 36, 1, 1, 1, 1, 36, 1, 1, 1, 1 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,1

LINKS

Table of n, a(n) for n=0..84.

Index entries for continued fractions for constants

Index entries for linear recurrences with constant coefficients, signature (0, 0, 0, 0, 1).

FORMULA

a(n)=(1/5)*{-31*(n mod 5)+4*[(n+1) mod 5]+4*[(n+2) mod 5]+4*[(n+3) mod 5]+39*[(n+4) mod 5]}-18*[C(2*n,n) mod 2], with n>=0 [From Paolo P. Lava, Apr 27 2009]

MAPLE

with(numtheory): Digits := 300: convert(evalf(sqrt(346)), confrac);

MATHEMATICA

ContinuedFraction[Sqrt[346], 120] (* or *) PadRight[{18}, 120, {36, 1, 1, 1, 1}] (* Harvey P. Dale, Apr 24 2016 *)

CROSSREFS

Sequence in context: A221394 A025602 A088126 * A040328 A040329 A040326

Adjacent sequences:  A040324 A040325 A040326 * A040328 A040329 A040330

KEYWORD

nonn,cofr,easy

AUTHOR

N. J. A. Sloane.

STATUS

approved

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Last modified October 21 14:06 EDT 2019. Contains 328300 sequences. (Running on oeis4.)